# Sling Race 3D! vs Happy Stacking Fun

The clearest difference is update cadence: Happy Stacking Fun at fortnightly against Sling Race 3D!'s every 30 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sling Race 3D! ships an update every 30 months, Happy Stacking Fun fortnightly. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Sling Race 3D! | Happy Stacking Fun |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (5 ratings)](https://appshunter.io/ios/app/sling-race-3d/id1569128699/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 30 months | **Fortnightly** |
| Monetization | Ad-supported | — |
| Size | 87 MB | 177 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Hamba Studio Ltd.](https://appshunter.io/developer/1227308508) | [LanGang Zhang](https://appshunter.io/developer/1740225725) |

## What reviewers say

### Sling Race 3D!

[App page](https://appshunter.io/ios/app/sling-race-3d/id1569128699)

Engage in a smooth sliding race with simple controls. Master the easy-to-learn mechanics to win. This game offers a straightforward racing experience.

**Highlights:** Smooth sliding mechanics, Simple controls, Easy to learn gameplay, Winning races

**Features:** macOS Compatibility

**In-app purchases:** none


### Happy Stacking Fun

[App page](https://appshunter.io/ios/app/happy-stacking-fun/id6483686011)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sling Race 3D! free?

Sling Race 3D! is free to download, with no in-app purchases.

### Is Happy Stacking Fun free?

Happy Stacking Fun is free to download, with no in-app purchases.

### Do Sling Race 3D! or Happy Stacking Fun have ads?

Both Sling Race 3D! and Happy Stacking Fun show ads.

### Which is updated more often, Sling Race 3D! or Happy Stacking Fun?

Sling Race 3D! ships an update every 30 months, and Happy Stacking Fun fortnightly. Most recently, Sling Race 3D! was updated on November 7, 2026 and Happy Stacking Fun on November 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*